Re: [PATCH 2/2] PCI: iproc: Support multi-MSI only on uniprocessor kernel

From: Marc Zyngier
Date: Sun Jun 06 2021 - 09:35:02 EST


On 2021-06-06 13:30, Sandor Bodo-Merle wrote:
The interrupt affinity scheme used by this driver is incompatible with
multi-MSI as it implies moving the doorbell address to that of another MSI
group. This isn't possible for multi-MSI, as all the MSIs must have the
same doorbell address. As such it is restricted to systems with a single
CPU.

Fixes: fc54bae28818 ("PCI: iproc: Allow allocation of multiple MSIs")
Reported-by: Marc Zyngier <maz@xxxxxxxxxx>
Signed-off-by: Sandor Bodo-Merle <sbodomerle@xxxxxxxxx>

Acked-by: Marc Zyngier <maz@xxxxxxxxxx>

M.
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